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Investor Presentaiton

Not all MW are Created Equal To power 500,000 homes reliably, the grid needs... Wind Solar + Battery requires ~10x more capital investment, 9x more installed capacity, and ~1,300x more land than a modern gas plant to achieve a similar level of reliability before considering transmission costs 1,000 MW of modern efficient gas plant 110 acres or 9,000MW of renewable energy (Wind + Solar + Battery) Battery Wind 147,540 acres (~1,300x) 1. 4.5 GW wind, 2.5 GW solar, and 2 GW batteries (1-hour duration) based on the ERCOT grid 2. 1GW of CCGT @ Capital cost of $968/kW ($1.0B); 9GW of Wind + Solar + Battery ($10.3B): 4.5GW wind @ $1,307/kW, 2.5GW solar @ $1,120/kW, 2GW 1-hr batteries @ $807/kW Source: National Renewable Energy Lab (NREL) Annual Technology Baseline (ATB) to calculate cost of both technology scenarios Vistra Investor Presentation/June 2023 Solar VISTRA 28
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